53511143203 has 12 divisors (see below), whose sum is σ = 62477368032. Its totient is φ = 45697433040.

The previous prime is 53511143159. The next prime is 53511143233. The reversal of 53511143203 is 30234111535.

It is a happy number.

It is not a de Polignac number, because 53511143203 - 2³³ = 44921208611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53511143233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2001600 + ... + 2028157.

It is an arithmetic number, because the mean of its divisors is an integer number (5206447336).

Almost surely, 2^53511143203 is an apocalyptic number.

53511143203 is a deficient number, since it is larger than the sum of its proper divisors (8966224829).

53511143203 is a wasteful number, since it uses less digits than its factorization.

53511143203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030042 (or 4030035 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 53511143203 its reverse (30234111535), we get a palindrome (83745254738).

The spelling of 53511143203 in words is "fifty-three billion, five hundred eleven million, one hundred forty-three thousand, two hundred three".